Chuck-A-Luck

From Parallel Lines with the Centers Back-to-Back.

Chuck-A-Luck (Art Miller 1971):
Centers Run as Ends Partner Tag; new Ends Pass In as new Centers Pass Thru.

Cross Chuck-A-Luck (Lee Kopman 1971):
Centers Cross Run as Ends Partner Tag; new Ends Pass In as new Centers Cross Trail Thru.

Both calls end in an Eight Chain Thru.